zod-user-input-validation

Input Validation using Zod

This module provides a simple function for input validation using the Zod library in JavaScript/TypeScript. It validates a username and password based on specified criteria.

Installation

Before using this module, make sure you have the Zod library installed. You can install it using npm:

npm install zod

Usage

// Import the z object from Zod library
import { z } from "zod";
// Alternatively, if you prefer CommonJS syntax:
// const z = require("zod");

// Function for input validation
function inputValidation(username, password) {
    // Define input schema using Zod
    let inputSchema = z.object({
        username: z.string().min(1).email(),
        password: z.string().min(6),
    });

    // Parse the input against the schema
    const parsedInput = inputSchema.safeParse({
        username,
        password,
    });

    // Return the parsed input
    return parsedInput;
}

// Export the function for use in other modules
export { inputValidation };

Example

// Import the inputValidation function
import { inputValidation } from "./path/to/inputValidation";

// Example usage
const userInput = inputValidation("[e-mail]", "securePassword");

if (userInput.success) {
    console.log("Input is valid!");
    console.log("Validated Data:", userInput.data);
} else {
    console.error("Invalid input. Errors:", userInput.error.errors);
}

In the example above, inputValidation is a function that takes a username and a password as arguments, validates them according to the specified criteria, and returns an object containing information about the validation result. If the input is valid, the success property will be true, and the validated data can be accessed through the data property. If the input is invalid, the success property will be false, and the specific validation errors can be accessed through the error.errors property.